IMPORTANT:
Config options host_role_relation and vm_role_relation didn't work as intended. If unset or no match the default role
Server would be assigned. From now on no role assignment will take place if not explicitly enabled.
Bugfixes:
- Issue with config options 'overwrite_device/vm_interface_name' set to False on initial syncs #287
- VM device not set if strip_host_domain_name = True #294
- fix issues with older python "requests" libraries #298
- stop assigning default role "Server" to NetBox Host/VM objects if config option is undefined/does not match #299